Wacker Neuson 5000017088 Lock Nut M20 Hex

The Wacker Neuson Lock Nut M20 Hex is a genuine OEM fastener designed for the RT82-SC2, RT56-SC2, RTLx-SC3, and RTKx-SC3 vibratory trench roller series, as well as the LTN6, LTW6K, LTW8K, and LTW20Z series light towers. As a direct factory replacement, this M20 hex lock nut delivers the correct thread engagement, torque retention, and dimensional accuracy required for critical structural and mechanical joints on these machines. Sourced directly from Wacker Neuson, part ensures compatibility across an extensive range of trench roller and light tower configurations. Keeping the correct hardware on hand means fastened assemblies stay secure through the vibration, load cycling, and field conditions these machines regularly encounter.

Key Features

• Genuine OEM Thread Specification: — Manufactured to Wacker Neuson's exact M20 thread pitch and hardness rating, ensuring proper torque load distribution without risk of galling or thread stripping.
• Locking Retention Under Vibration: — The lock nut design resists self-loosening caused by continuous mechanical vibration, which is a critical requirement on trench rollers with active drum vibration systems.
• Broad Cross-Family Fitment: — Fits RT82-SC2, RT56-SC2, RTLx-SC3, RTKx-SC3, and RTx-SC2 trench rollers, plus LTN6C, LTN6L, LTN6K, LTN8K, LTW6K, LTW8K, and LTW20Z light tower series.
• Drop-In Hardware Replacement: — Matches the OEM hex profile and bearing face dimensions for correct seating against mating components without shimming or modification.
• Structural Joint Integrity: — A failed or missing lock nut on a vibratory trench roller or light tower mast assembly can allow critical joints to work loose, leading to misalignment, accelerated wear, or unsafe operation.

A lock nut is a fastener engineered to resist loosening under dynamic loads and vibration. Unlike a standard hex nut, a lock nut incorporates a locking feature — typically a deformed thread section or nylon insert — that creates resistance against rotation once tightened, maintaining clamp load even when the assembly is subject to repeated shock or vibration. On vibratory trench rollers such as the RT and RTL series, fastener security is especially important because the entire machine frame is exposed to continuous oscillation during compaction operation. On light towers, lock nuts secure structural pivot points and mast components that must remain tight through transport and deployment cycles. When a lock nut wears out, loses its locking properties, or is missing entirely, the joint can gradually work loose, compromising the assembly's structural integrity and potentially causing component damage or unsafe conditions.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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